Sleet cutter



' G. 8. AND 0. MOORE.

SLEET CUTTER.

APPLICATION FILED JULY27. I921 Patented June 6, 1922.

2 SHEETSSHEET I.

Patented June 6, 1922.

2 SH EETSSHEET 2.

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M FgFlQE GILES s. Moons an]; orro oons, or FRANKFURT, rnnrnnn; sar ernns,s ivropn s.

'AssIenoR or Hrs j snrran RIGHT r0 nurroivrar o smnnyie rJaoLLEY' c mny, or FRANKFORQINDIANA, A CORPORATION.

sLnntr CUTTER.

new and useful Sleet Cutter,.of which the following is a specification.

It isthe object of this invention to provide .a simple means wherebysleet and ice may be stripped off a trolley wire, without effecting anyalterations in the standardtrolley harp equipment.

It isjwithinthe province of the disclosure to improve generally and toenhance the utility of devices of that typeto which the inventionappertains.

lVith the above and other objects in view, which will appear as thedescription proceeds, the invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that, within the scope ofwhat is claimed, changes in the precise embodiment of the inventionshown can be made without departing from the spirit of the invention.v

In the accompanying drawings Figure 1 shows in vertical longitudinalsection, a device constructed in accordance with the invention, partsappearing in elevation; Figure 2 is an elevation showing one side of thedevice; Figure 3 is an elevation showing the opposite side of thedevice; Figure 4 is a diagrammatic view alluded to in connection withthe operation of the structure; Figure 5: is a perspective view showingthe frame.

The numeral 1 denotes, generally, a trolley harp, including a socket 2having an eye 3 for the reception of'the trolley rope. Arms 4 projectfrom the socket 2 and are connected at their under edges by a cross bar5. A shaft or support 6 is carried by the arms 4 and is held in place bycotter pins 7 or otherwise. The ordinary trolley wheel (not! shown) orany form of trolley wheel, may be journaled on the shaft or support 6,when the frame 8 (hereinafter described), and parts carried thereby, areremoved.

The numeral 8 denotes, generally, a frame, comprising parallel arms 9having outstanding ears 10 provided with notches or seats 11. The ears10 are connected by an inner cross piece 12. The arms 9 are suppliedwith Application filed July 27,

fipecification of Letters Patent. Patented 11119 6, 1922,

1921. Serial No. 487,948.

openings 14. The arms, .further, are connected byan outer cross piece15.The arms 9 carry projecting guards l6;having conyexed outer edges1'7.Knuckles18 project from the cross piece .15 and betweenthem is receivedthe knuckle 19 of a pawl 22 carried by a support orpin 20, mounted in.the knuckles 18-19'andl1eldin place by cotter pins 21, or in any othersuitable way. At"

its inner end, the part22'carriesa weight 23 tending'to swing theouterfend. of :the pawl outwardly.

A shaft 29 is mountedin openings .,50 in the outer ends ofthe arms 9 andis held therein by cotter ,pins 30 ,orthe like. A wheel 25 is journaledfor [rotation on .the shaft 29 and is located between the arms 9.

The wheel 25 includes side plates 26 connected by transverse ribs 27which are so shaped'as to define stripping edges 28. The

side plates 26 of the wheel 25 are supplied with peripheral teeth 31,wherewith the outer end of the pawl 22 coacts.

The arms 9 of the frame 8 are received thus, the frame 8 is held on. thetrolley harp 1. a r

The numeral 35 marks a trolley wire. When the car carrying the harp 1moves forwardly, the stripping edge 28 of one of the ribs 27 rides alongthe wire 35- and removes the ice or sleet therefrom, itbeing observedthat the pawl 22 coacts with one of the teeth 31 in such away that theedge 28 of one rib 27 is made effective to scrape the wire 35. When thecar is backed, the wheel 25 will rotate on the shaft 29, and, thus, whenthe car is advanced, a new edge 28 will be presented for engagement withthe wire 35. When one of the edges 28 becomes dulled or worn, theappropriate tooth 31 may be filed off, as shown in dotted line at 32 inFigure 4. Consequently, the pawl .22

no longer will engage with that tooth, and the dulled edge 28 will notbe the trolley wire.

will engage the convexed edges 17 of the presented to guards 16 and willbe directed onto the periphery of the wheel 25, it thus beingpractically impossible for the device to tear off the lateral wires,jerk down the supporting poles or do any other like damage whichordinarily results when a trolley umps from the wire.

What we claim is 1. In a device of the class described, a frame; a wheeljournaled in the frame and provided with cutting edges; and a pawlcarried by the frame, the pawl coacting with the wheel to hold any ofsaid edges in operative position.

2. In a device of the class described, a harp including arms and a crossbar connecting the arms; a support carried by the arms; a frame mountedon the support and provided with seats receiving the cross bar; a wheeljournaled on the frame and provided with cutting edges; and a pawlmechanism on the frame and coacting with the wheel to prevent therotation of the wheel in one direction, and to hold any of the cuttingedges in working position.

3. In a deviceof the class described, a frame; a wheel journaled on theframe for free rotation in one direction and including side plates andribs connecting the side plates, the ribs having cutting edges; and

means for holding the wheel against rotation in an opposite direction,thereby to dispose any of said cutting edges in working position.

frame for free rotation in one direction, and

provided with cutting edges; and means for holding thewheel againstrotation inan opposite direction, thereby to dispose any of said cuttingedges in working position.

In testimony that we claim the foregoing as our own, we have heretoaffixed our signatures in'the presence of two witnesses.

GILES'S. MOORE, OTTO MOORE.

Witnesses JAMEs A. LUCAS, VVILLIAM RoBIsoN.

